import axios from 'axios'
import {MessageBox, Message} from 'element-ui'
import store from '@/store'
import {getToken} from '@/utils/auth'
import {baseUrl} from "@/config";

// create an axios instance
const service = axios.create({
    baseURL: baseUrl, // url = base url + request url
    // withCredentials: true, // send cookies when cross-domain requests
    timeout: 1000 * 60 * 5// request timeout
})

// request interceptor
service.interceptors.request.use(
    config => {
        let option = ''
        if (config.params) {
            option = 'params'
        } else {
            option = 'data'
        }
        // console.log("config",config)
        // config.headers["content-type"] = "application/json"
        // do something before request is sent
        config.headers['api-name'] = encodeURIComponent(config.apiName || '未知')
        if (store.getters.token) {
            // let each request carry token
            // ['X-Token'] is a custom headers key
            // please modify it according to the actual situation
            config.headers["Authorization"] = "Bearer " + getToken()
        }
        //处理数据
        // 参数为空是否删除
        if (!config.isNotNull) {
            for (let i in config[option]) {
                // 去除空格
                if (typeof config[option][i] === 'string') {
                    config[option][i] = config[option][i].trim()
                }
                // 空值移除
                if (!config[option][i] && config[option][i] !== 0 && typeof config[option][i] !== 'boolean') delete config[option][i]
                // 去除所有$开头字段
                if (/^\$/.test(i)) delete config[option][i]
            }
        }
        return config
    },
    error => {
        // do something with request error
        console.log(error) // for debug
        return Promise.reject(error)
    }
)

// response interceptor
service.interceptors.response.use(
    /**
     * If you want to get http information such as headers or status
     * Please return  response => response
     */

    /**
     * Determine the request status by custom code
     * Here is just an example
     * You can also judge the status by HTTP Status Code
     */
    response => {
        const res = response.data
        // if the custom code is not 20000, it is judged as an error.
        if (res.code !== 200) {
            Message({
                message: `${res.code} : ${res.msg.toString() || 'Error'}`,
                type: 'error',
                duration: 5 * 1000
            })

            // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
            if (res.code === 500) {
                // to re-login
                MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
                    confirmButtonText: 'Re-Login',
                    cancelButtonText: 'Cancel',
                    type: 'warning'
                }).then(() => {
                    store.dispatch('user/resetToken').then(() => {
                        location.reload()
                    })
                })
            }

            return Promise.reject(new Error(res.message || 'Error'))
        } else {
            return res
        }
    },
    error => {
        console.log('err' + error) // for debug
        const {msg, code} = error.response.data
        Message({
            message: `${code} : ${msg.toString() || 'Error'}`,
            type: 'error',
            duration: 5 * 1000
        })
        if (code === 401) store.dispatch('user/resetToken')

        return Promise.reject(error)
        // return Promise.resolve(error)
    }
)

export default service
